Bosch Rexroth RA 10 Series - Pin Assignment (Toggling Operation)

RE95230-B/2021-12-01, BoschRexrothAG
Installation | Analog amplifier RA 33/48
7�4�6 Pin assignment (toggling operation)
The following table shows the important pinassignments for toggling operation.
The other pins are to be wired according to Table 7 "Pin assignment" on page 31.
Table 9: Pin assignment
Signal Description Pin
Inputs
Parallel operation Open: toggling operation, interlocked control of solenoid 1 and 2 9
Potentiometer The potentiometer controls both differential inputs.
Function of pins:
16, 23:
8.4 V internal voltage
3, 11: 4 V internal voltage
2, 12: Signal ground
Differential inputs:
17, 22:
inverting input
4, 10: non-inverting input
The voltage difference is used to generate command values. In order to obtain amaximum
command v
alue, avoltage difference of 4 V must in each case be applied at the inputs of the
differential amplifiers.
The special connection ("opposite polarity") of the differential amplifiers results in the
locked control.
17, 16, 4, 3,
2, 23, 22, 12,
11, 10